2.3 to 2.7 GHz RF Architectures
for 4G Multi-Mode Multi-Band
Global Roaming Devices

Including IWPC Working Group Outcome and Next Generation RFFE Control Interface Requirements


Hosted by:



Global TD-LTE Initiative
Global TD-LTE Iniative
46 Worldwide Service Providers


June 4 - 6, 2012


Westin Washington
Dulles Airport Hotel

Herndon, VA USA



Limited to 100 seats

First Registered, First Served!

No Press. No Analysts. No Consultants.
No 3rd Party Sales Reps.

Confirmed Carriers

China Mobile
U.S. Cellular

Confirmed Speakers or Panel Members

Agilent Technologies
Avago Technologies
Azimuth Systems
MIPI Alliance
Pulse Engineering
Rohde & Schwarz
WiSpry, Inc.

Goals of Workshop

  • Review Global TDD Initiative Requirements and Deployment Strategies
  • Seek Consensus on Architectures for Cost/Performance Optimized 2.3-2.7 GHz RFFE
  • Assess RF Technology and Product Outlook and Roadmaps - 12-18 Months Out
  • Explore Integration Challenges - Can Single Modules Cover Global Roaming Bands?

Agenda (Subject To Change)

DAY 1 June 4


7:00 PM

Social and Networking

Reception and Registration


DAY 2 June 5


7:00 AM

Breakfast and Continued Registration



8:00 AM

Opening Remarks and Self-Introductions

Each person will be asked to introduce him/herself and show how they can contribute to this process.



9:00 AM

Host Keynote Opening Remarks and Presentation

  • Why 2.3 - 2.7 GHz?

  • 2.3 - 2.7 GHz - Importance of These Bands for Global Roaming

  • Introducing the Global TDD Initiative

  • Considering Technology Leaders' Perspectives from the RF Front End Ecosystem

  • Is the Industry Taking the 2.3 - 2.7 GHz Bands Seriously?

  • IWPC Working Group Overview & Outcomes

  • 2.3 - 2.7 GHz Global Bands Technology Integration & Economics

  • The Path to Global Roaming Success

  • Concrete Goals of the Workshop

Keynote Presentation

SVP, Strategic Partnership




IWPC 2.3-2.7 GHz 4G Device RF Front-End Architectures and Design Working Group

Director of Device Engineering and

Development - Clearwire



10:30 AM

Networking Break


11:10 AM

Global Carrier Perspectives

  • Market Drivers, Opportunities, and Challenges
  • Exploring Specific Applications and User Scenarios Driving MMMB Requirements
  • Considering Options for Global Roaming Bands
  • Exploring Legacy Bands, Interference, and Coverage
  • LTE Bands Required 2012-15 Timeframes
  • Multi-Mode Legacy Air Interface Support
  • Voice and Data Applications Requirements
  • Drivers for Mobility Between FDD & TDD LTE
  • Exploring MIMO Configurations
  • Inter and Intra-Band CA Requirements
  • Carrier Aggregation (CA) Requirements
  • Device Configuration Requirements to Support Roaming

Challenges and Expectations for LTE MMMB Global Roaming Devices

Project Manager, Department of

Terminal Technology


China Mobile


Presentation Title to be Confirmed

Director, Advanced Devices



12:30 PM

Networking Lunch


1:30 PM

RF Front-End Architectures Platform Viewpoint

  • Is a Global Roaming LTE Device Possible Using Today's Technology?
  • What Considerations Need to be Understood?
  • Assessing Opportunities, Challenges, & Trade-offs
  • Exploring Performance, Footprint, Cost, & Complexity
  • Understanding Economics of Scale & Device Complexity
  • Identifying Simultaneous Mode and Band Applications
  • Exploring the Route to IMS Based Voice Over LTE (VoLTE)
  • 2.3 - 2.7 GHz: A 4G World Band Multi-Mode for Global Markets
  • Assessing Carrier Aggregation Demands
  • In Search of Practical Economic Solutions
  • Assessing Device Form Factors and Demands (i.e. - Smartphones, Tablets, Personal Hotspot Routers, Data Cards, CPE)
    • Device Architecture Recommendations
    • Assessing Optimal Device Architectures for SMARTPHONES and DATA ONLY Devices



RF Platform and Components Perspective

Principle Engineer




Hardware and Software Architecture to Support 2.3 - 2.7 GHz and More

LTE Product Line Manager




Achieving Optimal Performance for 2.3-2.7 GHz Band LTE Devices

Software Engineer




3:30 PM 

Networking Break


4:10 PM

Multi-Mode Multi-Band Device Challenges & Opportunities

Presentation Title to be Confirmed





4:40 PM

Assessing Multi-Band Coexistence Characteristics & Challenges

WiFi Coexistence with LTE Devices Operating in Bands 38/40/41

Director, RF Product Engineering



5:10 PM

Panel Session - Carriers

  • Review Outcomes and Findings from the Days Proceedings


  • AT&T

  • China Mobile

  • Clearwire

  • Sprint

  • U.S. Cellular

5:50 PM

Adjourn For Day


6:30 PM

Bus Leaves for Dinner - Clyde's Willow Creek Farm

Bus Transportation provided to and from hotel.

DAY 3 June 6


7:00 AM



8:00 AM

4G Device Uplink Tx Power Characterization

4G Device UL Tx Power Characterization Based on Real Network Measurements

Senior Systems Engineer




8:40 AM

RF Front-End Architecture Considerations for Addressing 2.3 - 2.7 GHz Bands

  • Exploring Architectural Options, Benefits, & Trade-offs

  • Combining FDD & TDD into a Single Device

  • Exposing the Truth About Multimode Functionality

Noise Considerations for 2.5 GHz TD/FDD LTE

Strategic Marketing Manager




RF PA Options for 2.3-2.7 GHz Bands

Senior Marketing Manager




9:40 AM

2.3 - 2.7 GHz RF Front-End Module Interface Considerations

  • Transceiver Considerations

  • Filter Considerations

  • PA Considerations

  • Antenna Considerations

    • Assessing Single vs. Multiple Feeds

    • Antenna Tuning

    • Industrial Design Considerations for MIMO & Diversity

  • Exposing Carrier & Band Aggregation

Operator Independent Carrier-Aggregation HW Demonstration and Proposal for Adding 2.3-2.7 GHz Bands

Dir., Platform Technology Management




Senior Research Engineer


Pulse Engineering


Front-End Architecture for Worldwide LTE Roaming

CTO & Co-Founder


WiSpry, Inc.


10:40 AM

Networking Break


11:20 AM

RF Front-End Module Integration & Overall System Design Considerations

  • Enabling MPR Reduction

  • Efficient PA Broadbanding that Supports TDD/FDD-LTE

  • Easing Duplexer Requirements

  • What benefits does Envelope Tracking bring to the 2.3 - 2.7 GHz bands?

  • Eliminating MPR: Using ET to deliver full 23 dBm at the antenna, improving link budget & coverage

  • Broadband PAs for Multi-Mode, Multi-Band front ends - test results

  • IsoGain - PA linearization using Envelope Tracking

  • Impact on duplexer requirements

  • ET support from transceiver chipset vendors - market update & timescales for adoption

Envelope Tracking - A Unified Approach to Solving RF Front-End Challenges




Pushing the Envelope of PA Efficiency

North American Sales Director




12:20 PM

Networking Lunch

1:20 PM

Test and Measurement Considerations for 2.3 - 2.7 GHz Multi-Mode Multi-Band RFFE

  • Can the Industry Afford to Fully Test Global Roaming Devices?

  • Profiling

  • Measuring Throughput Performance Across Channel Models

  • Assessing Impact on Power Consumption

Benchmarking Multi-Band Multi-Mode RF Architectures in Real World Radio Environments

Senior Marketing Manager


Azimuth Systems


TDD/FDD Testing and GTI Test Cases

Business Development Manager




Testing Challenges, Methodologies, Operator Requirements, Relating to SRVCC or SV-LTE

Product Line Engineer


Rohde & Schwarz


2:20 PM

Feedback From MIPI RFFE2 Interface Spec. Survey

  • Specific Features Needs in Migration to a Next Generation RFFE Interface

Next Generation Front End Control Interface (RFFE) Survey Results, Takeaways and Next Steps

Product Marketing Director,



MIPI Alliance

3:00 PM 

Networking Break

3:40 PM

LTE TDD Device Portfolio Overview




TDD - FDD LTE MiFi Roaming Device Demonstration

LTE TDD Multi-Mode Multi-Band Device Trend

CTO - Devices




4:10 PM

Closing Panel

Host, Carriers and OEMs.

5:00 PM

Takeaways & Closing Remarks


5:45 PM



7:00 PM

Social and Networking

Reception and Registration


NGMN Hosted - LTE Global Roaming Multi-Band Multi-Mode Devices Workshop




  1. What is the deadline for handout materials?
  2. Who are the attendees?
  3. What are the costs/registrations fees?
  4. Hotel information?
  5. What are the travel options from the airport to the hotel?
  6. Are there any audiovisual requirements?
  7. Will business cards be collected?
  8. What is the dress code?
  9. How will handout materials be provided?
  1. What is the deadline for handout materials?

    Deadline for electronic version of handout materials: Tuesday, May 29th, 2012.

  2. Who are the attendees?
    • We do not permit the Press.
    • We do not permit Analysts.
    • We do not permit Consultants.
    • We do not permit 3rd party sales reps.
    • We only permit "first hand knowledge experts" in business and technology issues, prepared to contribute to the discussion.
  3. What are the costs/registrations fees?

    ALL Hosts, Speakers, Panel Members and Attendees will be asked to cover out-of-pocket workshop costs such as conference room costs, food (Social Reception plus First Day breakfast/lunch/dinner plus Second Day breakfast/lunch plus 4 Breaks), Presentation materials, audio/visual costs, etc.

    These costs will be $897 (USD) per person. (For IWPC Members only.)

    ALL Hosts, Speakers, Panel Members and Attendees will be asked to pay this fee in advance with either Visa, Mastercard, American Express, cash, personal check or business check. Make checks payable to IWPC.

  4. Hotel information?

    Westin Washington Dulles Airport Hotel
    2520 Wasser Terrace
    Herndon, VA 20171
    +1 (703) 793-3366

    Please contact the hotel directly at +1 (866) 360-5697 for reservations. Mention the IWPC room block rate of $189 (USD single occupancy).

    Cut-off date for reservations is Friday, May 18th, 2012. After that date rooms cannot be guaranteed at the IWPC rate.

  5. What are the travel options from the airport to the hotel?

    Click below to find directions as well as available transportation options from the airport to the hotel:


  6. Are there any audiovisual requirements?

    A Computer Projector will be available for the speakers.

    In addition, we audiotape all presentations and the interactive discussions. Post workshop, presentations are made available to IWPC Members on the IWPC WEB site, along with “movies” of all presentations and panel sessions.

  7. Will business cards be collected?

    Business cards will be collected at the door from all attendees. We will make copies of these cards, which will be available to all who provided a business card.

  8. What is the dress code?

    Business casual suggested. No ties, please !!

  9. How will handout materials be provided?

    IWPC prepares a memory stick with ALL presentation materials delivered to the IWPC on or before the deadline.

    For ALL IWPC members:

    All IWPC members are invited to submit materials to include on this memory stick. These pages should NOT BE SALES MATERIALS. Rather, we suggest it contain technical information about your technology as it relates to the workshop topics.

    For all companies who will be making a presentation at the Workshop:

    You are invited to submit an advance copy of your presentation, complete with graphics and illustrations.

    These materials will be handed out at the workshop and included in the IWPC Web site.

    Please submit these materials either by email, as a Word for Windows file, Power Point files or PDF files.

    Please use this FREE FTP site to send electronic materials (any size file):